5.6 Bohr's Atomic Model

Which of the following is/are explained by Bohr's model?

(a), (b) and (d) are correct

When did Bohr propose his model of the atom?

1913

What happens when an electron in a hydrogen atom moves from the excited state to the ground state?

A photon is emitted.

According to the Bohr model of an atom:

Both A and C

Bohr used a mixture of _____ to study electronic spectrums.

Classical and quantum physics

Bohr was able to explain the spectra of the:

H atom

Can the electron occupy any space between the orbits?

No

Bohr's atomic model is also commonly called the _____ model.

planetary

According to Bohr, electrons move in an orbital.

FALSE

According to Bohr, electrons circling the nucleus do not emit energy and spiral into the nucleus

TRUE

Where, relative to the nucleus, is the ground state of a hydrogen atom?

closest to the nucleus

Energy is transmitted only in indivisible, discrete quantities called

quanta

Bohr proposed electrons orbit at fixed distances from the nucleus in _____ states, such as the ground state or excited state.

stationary

Bohr considered electrons as _____.

Discrete particles

Which of the following is true according to the Bohr model of the atom?

Electrons orbit the nucleus in definite orbits.

According to Bohr's model of the atom, orbits closer to the nucleus would require the electrons to have a greater amount of energy, and orbits farther from the nucleus would require the electrons to have a smaller amount of energy.

FALSE

Bohr's model was a complete failure and could not provide insights for further development in atomic theory.

FALSE

Bohr's model was successful for atoms which have multiple electrons.

FALSE

Electrons present in the orbits closer to the nucleus have larger amounts of energy.

FALSE

What was the difficulty with Bohr's model of the atom?

It only explained the atomic emission spectrum of hydrogen.

A model of the atom which explained the atomic emission spectrum of hydrogen was proposed by _____.

Neils Bohr

According to Bohr, electrons circling the nucleus do not emit energy and spiral into the nucleus.

TRUE

According to the Bohr model of atoms, electrons occupy definite orbits.

TRUE

Bohr's theory explained the line spectra of the hydrogen atom.

TRUE

Electrons cannot exist at the spaces in between the Bohr orbits.

TRUE

Niels Bohr proposed that electrons circled the nucleus of an atom in a planetary-like motion.

TRUE

The key idea in the Bohr model of the atom is that electrons occupy definite orbits which require the electron to have a specific amount of energy.

TRUE

Which statement best describes the orbits of the electrons according to the Bohr model?

The orbits are at fixed distances from the nucleus.

Bohr suggested that an atomic spectrum is created when the _____ in an atom move between energy levels.

electrons

In Bohr's model, electrons exist in orbits around the nucleus which only exist at fixed distances from the nucleus called ____ levels.

energy

In the Bohr model of the atom, what is the term for fixed distances from the nucleus of an atom where electrons may be found?

energy levels

A ______ state is when the electron is closest to the nucleus.

ground

The discrete amounts of energy that can be absorbed or released by an atom as an electron changes energy levels are called _____.

quanta